Johnson 40-6200 Industrial Magnetic Pull

The magnetic pulley
alignment laser tool projects a plane of laser light parallel with
the faces of drive and driven sheaves (or pulleys). Adjustable
targets attach to sheaves, intersect the laser beam and visually
show any misalignment. The Retro-Reflective film on the center line
of the target reflects the laser beam and "glows" for enhanced
visibility and accuracy. The reflective green film shows the laser's
alignment line in "Real Time". This is called "Positive Tracking".
Features: